<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="app">
    <input type="radio" name="sex" value="男" v-model="sex">男
    <input type="radio" name="sex" value="女" v-model="sex">女
    <br>
    选择结果:{{sex}}

    <br>
    输入文本:<textarea v-model="message"></textarea>
        {{message}}

    <br><br>

    下拉菜单
    <select v-model="select">
        <option value="" disabled>请选择</option>
        <option>0</option>
        <option>1</option>
        <option>2</option>
        <option>3</option>
    </select>
    {{select}}
</div>



<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script>
    var vm = new Vue({
        el: "#app",
        data: {
            select: '',
            sex: '',
            message: "123"
        },

    });
</script>
</body>
</html>